[llvm] [AArch64] SME definitions for C1-Ultra scheduling model (PR #194850)

[Asher Dobrescu via llvm-commits]

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Asher8118 wrote:

nit: could you look through the forwarded types and keep the names consistent? Sometimes it's `C1UWR...`, other times `C1UWr...`. Could you please make them all `C1UWr...` for consistency? I think that's how we name them in other models as well.

https://github.com/llvm/llvm-project/pull/194850